中国塑料2018，Vol.32Issue(6)：40-45,6.DOI:10.19491/j.issn.1001-9278.2018.06.006
树脂类型对PVC溶胶流变性能的影响
Effect of Types of Resin on Rheological Properties of PVC Plastisols
摘要
Abstract
The poly(vinyl chloride)(PVC)paste resins produced with different production methods were used to prepare a series of PVC plastisols,and the rheological properties of these plastisols were investigated by using rotational rheometer at a constant heating rate.The particulate morphology,molecular weight and molecular weight distribution of PVC paste resins were investigated by scanning electron microscope, laser particle analyzer and gel permeation chromatography correspondingly,and the relationship between the rheological properties of PVC plastisols and the characteristic parameters of paste resins were established.The results show that, with the increase of temperature,the rheological curves of PVC plastisols including energy-storage modulus,loss modulus,and complex viscosity tended to show a non-normal distribution.These curves demonstrated a four-stage variation in rheological parameters:(I)decrease,(II)slow rise, (III)rapid rise and maximization (IV)decrease.In the first three stages,the viscosity was mainly affected by the particulate morphology.However, with the gradual decrease of rheological parameters in the fourth stage,the viscosity was mainly affected by the molecular weight and its distribution of PVC paste resins.关键词
聚氯乙烯/溶胶/流变/颗粒形态/相对分子质量Key words
poly(vinyl chloride)/plastisols/rheology/particulate morphology/molecular weight分类
化学化工引用本文复制引用
吉玉碧,石敏,王醴均,龚维,谭红..树脂类型对PVC溶胶流变性能的影响[J].中国塑料,2018,32(6):40-45,6.基金项目
贵州省2016年度高层次创新性人才项目(黔科合人才[2016]5673号) （黔科合人才[2016]5673号）
